Improvement in grub and stump machines



PATENT Errea.

ALMERON MGKENNEY, or MAUMEE, onio.

IMPROVEMENT IN GRUB AND STUMP MACHINES.

Specification forming part of Letters Patent No. 54,000, dated April 17,1866.

To all whom it may concern:

Be it known that I, ALMERON MOKENNEY, of Maumee city, of Lucas county,of the State of Ohio, have invented certain new and useful Improvementsin Grub and Stump Machines; and I do hereby declare that the followingis a full, clear, and exact description of the same, reference being hadto the accompanying drawings and the letters of reference markedthereon.

Figure l represents a plan view ot the entire machine. Fig. 2 representsa side elevation with one wheel taken oft'. Fig. 3 repre- 'sents a planview of the grub-hook. Fig. 4

represents-a plan view ot' a slotted bar used in connection with themachine. Fig. 5 represents an end view ofthe axle with the flanges.

The nature of my invention consists in constructing a substantial andpractical machine embracing the main features of my grub-machinepatented February IS, 1862, and with such variations, improvements, andadditions as to adapt it to extracting the stumps of small trees orgrubs and stool-grubs, and also of dry stumps of larger size.

In the drawings herewith presented, and forming a part of thisspeciiication, A A represent the wheels of the machine, which are madeot'well-seasoned lumber or boardsand rmly secured together with rivetsor bolts. These wheels are provided with suitable iron boxes set withinthem to revolve true and to secure durability in the bearings.

In lieu of the ratchets that my former machines are provided with, Isubstitute here cogs B B, which are attached to the inner sides of thewheels A A. These cogs are of metal and are square, being placed asuitable distance apart for the purposes hereinafter to be described.

D represents the lever, which is made of three or more boards orsubstantial pieces of lumber firmly secured together and forming, as itwere, one piece. From experience I find this mode of constructing thelever as the best to 'be pursued, as the lever is m'orc substantial andnot so heavy as that of making it of one piece. This lever is made ofeven width from the lower end upward one-haliits entire length, and fromthence tapering upward, so that the top end is just one-half ot' thewidth of the lower end. This shape is adopted to give the requisitestrength where it is most needed, and that it may be perfectly straightwhen great strain is applied to it.

L represents the axle which connects the wheels A A, and upon which thelever D rests. This axle is made of metal, and is hollow for the purposeof diminishing the weight of the machine and giving the same suitablestrength. In the making of this axle I dispense with the lugs upon itand the clevis, as shown in my former patent heretofore referred to.This axle has upon its upper side two anges, 7c 7c, which extend aboveand below the axle a short distance, as is shown in Fig. l, and ears nn, which project slightly from the axle. This axle L, the flanges k k,and the ears n a are cast ot' one piece, and not only serve tostrengthen theaxle itself, but form a receptacle for the lever D. Thislever D is set upon the axle L and between the ears n a, being boltedthrough the flanges 7c k, as seen at l 2 in Fig.1, and held perfectlysecure in its place.

M represents a stirrup, which is made of metal, (wrought-imm) and passesaround the bot-tom end ot' the lever D, being secured at each side ot'the lever D to the axle L. This stirrup passes through the axle and issecured to same by bolts or rivets. This stirrup is to strengthen theaxle when the lever is in an upright position and power being appliedendwise to the same, serving also to keep the lever from swayingsidewise.

Secured upon the lower end -of the lever is a metallic bite, H, having aV-shaped edge, which is set above the end ot' the casting upon which itis formed7 about half-way between the slot where the bolt attaches thesame to lever and the end of the lever, and about one and one-haltinches from the end of said lever. The object of this bite is to avoidmashing down or bruising the end of the lever D, which is the case wherethe bite is set on the end of the casting and at the end of the lever.In former practice this has proved to be a difliculty, and by thissimple arrangement the dit'- iiculty is surmounted and the lever at thatpoint is kept sound and durable.

I I represent two brace-hooks, which are attached to the lever D a shortdistance above the wheels by means of a bolt, which passes through aneye which is formed in each hook at aboutfourinches from the ends, andthrough the lever. Upon this bolt these brace-hooks readily turn as upona pivot.

Where the hooks are secured to the lever there are two eccentrics, K,which are formed upon each end of the bolt that secures them, and bymeans of a small crank upon one otL the eccentrics the brace-hooks areadjusted. These brace-hooks are bent in the shape shown in Fig.l,and areprovided with a square piece at the lower end, as seen at f f, for thepurpose of catching in between the cogs at the side of the wheels A Aand perfectly locking the wheels. They are held in their places, when itis desired to lock the wheels, by eceentrics K K, and can be thrown frombetween the cogs by said eccentrics when the machine is moved by therevolving of the wheels. In cleared fields, where there is no underbrushto come in contact with, these brace-hooks are reversed, being appliedto the cog-wheels B B on Linder side instead ot' the upper. I preferthis mode, but the former is applied where the machine is to be used forgreen grubs where there is brush in the way.

With the lever, wheels, and axle thus arranged, I construct an extendedhook, E, similar in construction to a cant-hook, which is formed ofthree flat bars of iron, welded together in the bend ofthe hook to givestrength, the two outside bars, a and, c, crotching just at the bend, soas to straddle the lever D, and the center piece, b, extending slightlyabove the point where the two outside pieces, t and c, become parallel.Just at that point a bolt passes through the three bars and through twoblocks of iron, cl d, which are set between the outside and inside barsto keep them parallel. The object of these blocks d d is to keep theoutside bars from pressing inward when power is applied. The long barsof this hook have notches formed 011 their under edges, to attach thehook to the flanges 7c 7c on the axle. Said anges are heavier at thatpoint and rounded for that purpose. This hook E can be adjusted to graspa large or a small stump or grub by means of the notches on the same,heretofore described, and has a broad point, which is notched andsharpened to more readily grasp the stump or grub and prevent it fromcutting in too deep.

It may readily be seen how this device is applied, it being hooked on tothe upper flanges, 7c 7c, ofthe axle L, when the lever l) is set uprightand the bite E set against the small stump or grub. The hook E is thenattached to the stump or grub on the opposite side. The top of the leverD is then drawn forward or toward the. ground, and the edge ofthe hook Ewill cut into the wood and hold it fast, so that it may be raised fromthe ground.

Having thus shown how the machine is operated for small stumps or grubs,I will now proceed to show a further arrangement and application tostumps of a larger size, and

which are too high out of the ground to be reached by the aforesaid modeof operation.

At the upper end of the lever D is a slot, Fig. l. Around this end ofthe lever is a metallic stirrup, It, which is securely bolted to saidlever. Within the slot in the lever is ahook,0, which hangs downward andis designated the leverhook,7 and is made strongest in the downwarddirection. l A slotted bar, Pis then provided, which bar has one slot atthe forward end and two or more slots at the lower end, as seen in Fig.e.. This bar P is hooked to the lever-hook O by the slot in the forwardend of said bar. This bar may rest upon the lever D when the machine isin motion and said bar is not in use. A substantial hook, S, is attachedto the other end of the bar l? by means of a smaller hook, T, which ispermanently secured to the grapplin g -hook S. This hook S is made ofone piece of iron, and very broad and heavy in the bend of the same,being sharpened and notched in the end as the others heretoforedescribed. The grappling-hook S is attached to the stump and power isapplied at the end of the lever D. In applying the machine the lever isusually placed in an upright position and the bite H against the stumpnear the ground. The hooks heretofore described are placed over thestump and power is applied at the end of the lever, where there is apulley, m, for that purpose. The lever is leaned over so that the toprests directly over the opposite or back side of the stump. When poweris appplied and the lever moved forward to a perpendicular position thestump is raised the distance which is gained by the straightening of thelever. The team is then backed and the hook is hooked to another slot inthe bar. Thus by repeating the operation the stump is loosened and themachine moved forward, carrying the lever to a horizontal position andraising the stump upon the machine, which can be carried to the requireddistance.

The main object of myinvention is to make an economical and simpledevicewhich can be used practically by all farmers, and one that iseasily transported and stand the strain of any ordinary stump thatshould be extracted from the ground. This machine is for use on oldelds, where stumps are in the ground, as well as fornew elds,where smallgreen stumps and grubs are desired to be extracted, and can also be usedin working the roads. With the simple and substantial arrangements ofthis machine the farmer is enabled to clear his elds of old stumps, andalso his new grounds of low green stumps and grubs.

In the manufacture of this machine the axle is made somewhat longer thanin the one previously referred to, and I provide said axle with twowings, q q, (see Fig. 5,) to give additional strength.

I do not claim the entire machine as new; but

What I do claim, and desire to secure by Letters Patent, is-

1. The shape and construction of the lever D, when provided with thebite H, used as and for the purposes herein set forth.

2. The axle L, with flanges -c 7c, ears n n, and win gs q g, arrangedWith the stirrup M, to give additional strength and effeotually supportthe lever, substantially as and for the purposes herein speoied.

3. The brace-hooks I I and cog-wheels B B, attached to the inner sideor" the wheels A A, when used as and for the purposes set forth.

4. The extended hook E, constructed and plied as and for the purposesherein shown.

5. The slotted bar P,1everhook (),and grappling-hook S, arranged andused as and for the purposes herein described.

A. MCKENNEY.

Witnesses:

C. M. ALEXANDER, J. M. MnsoN.

